Synonyms: Aceticacid, (2,5-dihydroxyphenyl)-, g-lactone (6CI,7CI);2,5-Dihydroxyphenylacetic acid lactone;2,5-Dihydroxyphenylacetic acid g-lactone;5-Hydroxy-2(3H)-benzofuranone;5-Hydroxy-2-coumaranone;5-Hydroxy-3H-benzofuran-2-one;Homogentisic acid lactone;Homogentisic lactone;NSC 61996;5-hydroxy-1-benzofuran-2(3H)-one;2,5-Dihydroxyphenylacetic g-lactone;5-Hydroxy-2-coumaranone;